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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8105528

Type

Invention Patent

Filing

08/31/1981

Publication

05/18/1982

Progress at the INPI

  1. Filing08/31/81
  2. Publication05/18/82
  3. Examination09/14/82
  4. Allowance08/11/87
  5. Grant02/23/88
  6. Expired08/19/08

The letters patent expired on 08/19/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 02/23/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. A. (pessoa física)

Inventors

B. S. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/23/1988

RPI 905

Notificação para pagamento de retribuição

#13.1

12/01/1987

RPI 893

Deferimento

#9.1

08/11/1987

RPI 877

Exigência - art. 36 da LPI

#6.1

01/21/1987

RPI 848

Exigência - art. 36 da LPI

#6.1

03/05/1985

RPI 750

Solicitação de exame técnico

#4.1

09/14/1982

RPI 621

Publicação do pedido de patente

#3.1

05/18/1982

RPI 604

Pedido de patente depositado

#2.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

Patente extinta em 31/08/96

08/19/2008

RPI 1963

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